linux-sg2042/drivers/usb
David Vrabel 8f04915532 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into for-upstream 2009-02-02 17:52:39 +00:00
..
atm net: convert more to %pM 2008-10-27 17:47:26 -07:00
c67x00 usb/c67x00 endianness annotations 2008-06-04 08:06:01 -07:00
class USB: cdc-acm: Add another conexant modem to the quirks 2009-01-27 16:15:37 -08:00
core USB: fix char-device disconnect handling 2009-01-27 16:15:32 -08:00
gadget USB: GADGET: fix !x & y 2009-01-27 16:15:37 -08:00
host Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into for-upstream 2009-02-02 17:52:39 +00:00
image USB: change interface to usb_lock_device_for_reset() 2009-01-07 09:59:52 -08:00
misc USB: remove vernier labpro from ldusb 2009-01-27 16:15:36 -08:00
mon USB: usbmon: Implement compat_ioctl 2009-01-27 16:15:36 -08:00
musb USB: musb: Kconfig fix 2009-01-27 16:15:35 -08:00
otg USB: omap1 ohci buildfix (otg related) 2009-01-27 16:15:32 -08:00
serial USB: option: add QUANTA HSDPA Data Card device ids 2009-01-27 16:15:37 -08:00
storage USB: storage: Add another unusual_dev for off-by-one bug 2009-01-27 16:15:37 -08:00
wusbcore Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into for-upstream 2009-01-22 19:12:32 +00:00
Kconfig USB: move isp1301_omap to drivers/usb/otg 2009-01-07 10:00:02 -08:00
Makefile USB: Driver for Freescale QUICC Engine USB Host Controller 2009-01-27 16:15:38 -08:00
README USB: fix directory references in usb/README 2007-11-28 13:58:34 -08:00
usb-skeleton.c USB: remove unnecessary type casting of urb->context 2008-04-24 21:16:55 -07:00

README

To understand all the Linux-USB framework, you'll use these resources:

    * This source code.  This is necessarily an evolving work, and
      includes kerneldoc that should help you get a current overview.
      ("make pdfdocs", and then look at "usb.pdf" for host side and
      "gadget.pdf" for peripheral side.)  Also, Documentation/usb has
      more information.

    * The USB 2.0 specification (from www.usb.org), with supplements
      such as those for USB OTG and the various device classes.
      The USB specification has a good overview chapter, and USB
      peripherals conform to the widely known "Chapter 9".

    * Chip specifications for USB controllers.  Examples include
      host controllers (on PCs, servers, and more); peripheral
      controllers (in devices with Linux firmware, like printers or
      cell phones); and hard-wired peripherals like Ethernet adapters.

    * Specifications for other protocols implemented by USB peripheral
      functions.  Some are vendor-specific; others are vendor-neutral
      but just standardized outside of the www.usb.org team.

Here is a list of what each subdirectory here is, and what is contained in
them.

core/		- This is for the core USB host code, including the
		  usbfs files and the hub class driver ("khubd").

host/		- This is for USB host controller drivers.  This
		  includes UHCI, OHCI, EHCI, and others that might
		  be used with more specialized "embedded" systems.

gadget/		- This is for USB peripheral controller drivers and
		  the various gadget drivers which talk to them.


Individual USB driver directories.  A new driver should be added to the
first subdirectory in the list below that it fits into.

image/		- This is for still image drivers, like scanners or
		  digital cameras.
../input/	- This is for any driver that uses the input subsystem,
		  like keyboard, mice, touchscreens, tablets, etc.
../media/	- This is for multimedia drivers, like video cameras,
		  radios, and any other drivers that talk to the v4l
		  subsystem.
../net/		- This is for network drivers.
serial/		- This is for USB to serial drivers.
storage/	- This is for USB mass-storage drivers.
class/		- This is for all USB device drivers that do not fit
		  into any of the above categories, and work for a range
		  of USB Class specified devices. 
misc/		- This is for all USB device drivers that do not fit
		  into any of the above categories.